Improvement in fire-places



' D.HAYES.

FIRE-PLACE.

Patented De c. 28

1H I 1 W: I II \fl 5 F INVENTOR a- M W WW ATTORNEYS N. PETERS,PHDTD-UTMOGRAPHER, WASHINGTON, D O

NITED STATES PATENT OFFICE.

DAVID HAYES, OF CHICAGO, ILLINOIS.

IMPROVEMENT m FIRE-PLACES.

Specification forming part of Letters Patent No. 171,565, dated December28, 1875 application filed March 27, 1875.

To alt'whom it may concern:

Be it known that I, DAVID HAYES, of the city of Chicago, in the countyof Cook and State of Illinois, have invented a new and valuableImprovement in Fire-Place Heaters; and I do hereby declare that thefollowingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawings,makinga part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawing is a representation of a front view of thegrate, showing a mantel attached. Fig.2 is a side view of the same. Fig.3 is a side view with mantel attached. Fig. 4 is a back View of same.

The object of my said improvement is to combine the advantages of ahot-air furnace with an open grate, and to make available for heatingpurposes the heat which in the use of the ordinary grate escapes up thechimney or absorbed in brick back. To adcomplish this object I havearranged and combined air chambers and flues in such a manner as tocause flame from the fuel, and also the heated products of combustion,to come in contact with chambers and tubes containing and conveying air,so as to heat them, and the air contained in and passing through them,and discharge the air thus heated into the room to be heated.

In the accompanying drawing, Fig. 1 shows the front plate d d d d,connecting the grate and the mantel, which isso constructed as tocontain achamber for air, which is admitted to the chamber throughopenings at or near the bottom of said plate, (indicated by arrows andmarked ff,) which air is heated in such chamber by means of the fire inthe grate, and passesinto the room through openin'gs at the top of saidchamber, marked h h h,

' also indicated by arrows outward.

In Fig. 1, b represents the fire-chamber of the grate. a represents aninclined portion ofthe back of the grate, designed to throw the flameforward toward the front, that it may be heated more readily by theflame than if it were perpendicular or parallel to the front of thegrate. a a a. a represent tubes placed in the top of a recess in theback of the grate, made bythe incline of theback plate forward,represented as above stated. 0 0 represent tubes or air-ducts archingover the flame-chamber, opening at the side of the grate, as shown inFig. 2 at f f. c 0 represent tubes leading out of the air-duets c c,conveying the heated air to the top of the grate, when it is dischargedinto the room through openings in the mantel. The direction and thebeginning and ending of these tubes are represented by the dotted linesin Fig. 2 of the accompanying drawings.

In Fig. 4 the back of the grate is represented, showing the recessformed by the inclination of the back forward, and the entrance tothe'tubes a a a is indicated by said letters.

The exit-flue for the smoke and the products of combustion is seen at ein Figs. 3

and 4.

'The operation ofthis grate is as follows: A fire being kindled in thegrate at b,,the

flame, smoke, and products of combustion arise and fill the chamberabove, in which are located the tubes and air-ducts a, c, and c, whichtubes and air-ducts become heated. A current of air then passes onthrough these tubes and ducts, and in its passage becomes heated bycontact with their surfaces. In this manner a large volume of air israpidly heated and discharged into the room in which the grate isplaced. In addition to these tubes, the chamber formed by the frontplate 01 d d d, being filled with air through the openings at thebottom, as seen at f f, Fig. 1, becomes highly heated, and, heating theair within it, the air arises and is discharged into the room throughthe openings at h h h at the top of said plate. In this manner the grateperforms the office of a furnace and a grate combined, and becomes apowerful instrument both ofheating'and ventilation.

All openings for admission of cold air are marked ff All openings forthe escape of heated air are marked h k Having thus fully described thenature and "idea with the cold-air openings f f at its hereuntosubscribed my name in the presence lower end, and heated-air tubes h72?, in com- 01" two witnesses.

bination with the air-tubes a c inclined airtube 0, and open fire-placeI), having an in- DAVID HAYEb' clined back, a, substantially asdescribed, and Witnesses:

for the purpose set forth. JOEL TIFFANY,

In testimony that I claim the above I have C. O. WARREN.

